Quarterly report pursuant to Section 13 or 15(d)

Variable Interest Entities Variable Interest Entities (Details)

v2.4.0.8
Variable Interest Entities Variable Interest Entities (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Dec. 31, 2012
Variable Interest Entity [Line Items]    
Variable Interest Entity, Consolidated, Carrying Amount, Assets $ 808,647 $ 0
Variable Interest Entity, Consolidated, Carrying Amount, Liabilities 652,227 0
Loans Held-for-investment, Mortgages [Member]
    
Variable Interest Entity [Line Items]    
Variable Interest Entity, Consolidated, Carrying Amount, Assets 804,988 0
Accrued Income Receivable [Member]
    
Variable Interest Entity [Line Items]    
Variable Interest Entity, Consolidated, Carrying Amount, Assets 3,659 0
Assets, Total [Member]
    
Variable Interest Entity [Line Items]    
Variable Interest Entity, Consolidated, Carrying Amount, Assets 808,647 0
Borrowings [Member]
    
Variable Interest Entity [Line Items]    
Variable Interest Entity, Consolidated, Carrying Amount, Liabilities 649,082 0
Accrued Liabilities [Member]
    
Variable Interest Entity [Line Items]    
Variable Interest Entity, Consolidated, Carrying Amount, Liabilities 1,622 0
Accounts Payable [Member]
    
Variable Interest Entity [Line Items]    
Variable Interest Entity, Consolidated, Carrying Amount, Liabilities 1,523 0
Liabilities, Total [Member]
    
Variable Interest Entity [Line Items]    
Variable Interest Entity, Consolidated, Carrying Amount, Liabilities $ 652,227 $ 0